GI Heath: Getting the best GI doctor makes all the difference | Business In order to properly ensure this aspect of overall health, having the best GI doctor is essential. When experiencing a digestive disorder, it is always better to directly consult a professional who is dedicated to the study of this field such as Dr. Peyton P. Berookim of the Gastroenterology Institute of Southern California. By seeing a specialist GI doctor, a more accurate and timely diagnosis and treatment plan can be obtained, leading to a faster recovery period. Beverly Hills based Dr. Berookim treats the full range of conditions affecting the digestive tract, with a special interest in the detection and prevention of colon and esophageal cancer.